Order I. ACCIPITRES. 
Family I. VuLTURiDiE. 
The fourth Subfamily, 
GYP0HIERACIN7E, or Eagle-Vultures, 
have the Bill lengthened, much compressed on the sides, and the base covered with a Cere for one third 
of the length of the bill ; the Wings lengthened and pointed ; and the Tarsi covered with rather large 
reticulated scales. 
Gypohierax Rupp * 
Rill lengthened, much compressed on the sides, the base of the upper mandible covered with a cere 
for one third of the length of the bill, the culmen slightly arched and curved to the tip, which is acute ; 
the nostrils exposed, placed in front of the cere, with the openings oblique and sub-ovate. Wings 
lengthened and pointed, with the third and fourth quills the longest. Tail rather short and rounded. 
Tarsi as long as the middle toe, robust, feathered below the knee, and the rest covered with large 
reticulated scales. Toes rather long, strong, and much scutellated, the lateral ones unequal, and the 
hind toe as long as the inner, both being armed with strong powerful claws. The Lores , the space 
round each eye, and two longitudinal stripes below the lower mandible, denuded of feathers. 
The type of this genus is supposed to be peculiar to Western Africa, but its habits are, from its rarity, at present 
unknown. 
G. angolensis (Gmel.) Riipp. Shaw, Lev. Mus. pi. p. 153. — Polyborus ? hypoleucus Berm. Jard. & Selby’s 111. Ora. n. s. pi. 13. 
Tile above generic name was proposed by Dr. Ruppell in (Faun. Abyss. Fog. p. 45.) 1835 ; and Mr. Gray s Jtacama of 1840 is coequal. 
July, 1844. 
